Wall Street Journal:Amazon is expanding its business-to-business marketplace, Amazon Business, into the medical supply industry, plotting to become major supplier to US hospitals — The market for medical supplies is one of a growing number of businesses…

Sarah Perez / TechCrunch:Scammers are using Zelle, a p2p payments service, to defraud online buyers who trusted the service because it is backed by US banks — Scammers have taken to Zelle, the Venmo alternative backed by U.S. banks, to defraud consumers…

Jane Lytvynenko / BuzzFeed:Twitter says it needs a scalable policy on authenticity of content after journalist suffers harassment due to viral screenshots of fake tweets from her account — In the wake of the Florida high school shooting Wednesday,…

Jennifer Valentino-DeVries / ProPublica:After FEC clarification in December that big political ads on Facebook require disclaimers, review of 300+ ads finds fewer than 40 complied with new rules — The Federal Election Commission said in December that big…

Sarah McBride / Bloomberg:Behind Singularity University's pivot towards executive seminars and conferences after dealing with allegations of assault and fraud, as it raises $32M Series B — It's lost Google funding and dealt with allegations of assault…

Adam Samson / Financial Times:Salon tests alternative to advertising by offering visitors who use ad-blocking tools an option that allows the site to mine Monero using readers' computers — Do you use an ad blocker? That's cool — just let us use your…

Aaron Pressman / Fortune:Profile of John Legere, who has more than doubled T-Mobile's revenue since 2012 with brash messaging and relentless focus on customers and frontline employees — The crowd in the ballroom at the Westin New York at Times Square on…

Klint Finley / Wired:Google says 42% of sites notified made preemptive changes ahead of Chrome ad blocker launch; fewer than 1% of most popular sites violate suggested ad guidelines — YOU MIGHT SEE fewer ads on the web from now on. But you probably…

Nick Statt / The Verge:Facebook apologizes for 2FA-related SMS notifications spam and auto-posting replies on the user's profile, says fix rolling out in coming days — The company also plans disable a feature that automatically posts SMS replies as…